Detroit
Michigan, USA
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Detroit, MI

The downtown city of Detroit, Michigan, viewed from a bird
The downtown city of Detroit, Michigan, viewed from a bird's eye angle
July, the same as June, is another warm summer month in Detroit, Michigan, with average temperature fluctuating between 65.8°F (18.8°C) and 79.9°F (26.6°C).

Temperature

The warmest month is July, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 65.8°F (18.8°C).

Humidity

July and August, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Detroit, during 16.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 152.1 rainfall days, and 23.43" (595mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Ocean temperature

In July, the average ocean temperature in Detroit is 74.8°F (23.8°C).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.8°F (23.8°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In Detroit, the average length of the day is 14.9h.

Sunshine

The month with the most sunshine is July, with an average of 10.6h of sunshine.

UV index

Months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the warmest month in Detroit?

The warmest month is July, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 65.8°F (18.8°C).

What is the temperature in July in Detroit?

In July, the average high-temperature is 79.9°F (26.6°C), and the average low-temperature is 65.8°F (18.8°C).

What is the least humid month in Detroit?

July and August, with an average relative humidity of 73%, are the least humid months in Detroit, Michigan.

What is the average humidity in July in Detroit?

In July, the average relative humidity is 73%.

How many days does it rain in July in Detroit?

In Detroit, in July, during 16.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow in Detroit?

June through September are months without snowfall in Detroit, Michigan.

What is the ocean temperature in July in Detroit?

In Detroit, Michigan, in July, the average water temperature is 74.8°F (23.8°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.8°F (23.8°C) water.

What is the average length of the day in July in Detroit?

In July, the average length of the day in Detroit is 14.9h.

What month has the most sunshine in Detroit?

The month with the most sunshine in Detroit, Michigan, is July, with an average of 10.6h of sunshine.

How many hours of sunshine does Detroit have in July?

The average sunshine in July in Detroit is 10.6h.

What is the month with the highest UV index in Detroit?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index reading in July in Detroit?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.
Average temperature in July - Detroit, MI
  • Average high temperature in July: 79.9°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in July: 65.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average humidity in July - Detroit, MI
  • Average humidity in July: 73%

The month with the highest relative humidity is February (85%).
Months with the lowest relative humidity are July and August (73%).

Average rainfall in July - Detroit, MI
  • Average rainfall in July: 2.32"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the lowest rainfall) is February (1.22").

Average rainfall days in July - Detroit, MI
  • Average rainfall days in July: 16.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the lowest number of rainy days is January (7.1 days).

Average snowfall in July - Detroit, MI
  • Average snowfall in July: 0"

The month with the highest snowfall is January (4.29").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in July - Detroit, MI
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (14.5 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average sea temperature in July - Detroit, MI
  • Average sea temperature in July: 74.7°F

The best month for swimming (with the highest average sea temperature) is August (75.4°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).

Average daylight in July / Average sunshine in July - Detroit, MI
  • Average daylight in July: 14.9h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in July: 10.6h

The month with most sunshine is July (Average sunshine: 10.6h).
The month with least sunshine is January (Average sunshine: 3.2h).

Average UV index in July - Detroit, MI
  • Average UV index in July: 6

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).